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| author | Leah Neukirchen <leah@vuxu.org> | 2022-02-13 18:23:41 +0100 |
|---|---|---|
| committer | Leah Neukirchen <leah@vuxu.org> | 2022-02-13 18:23:41 +0100 |
| commit | 6dc570e657d6cac10aa2af9c259df6c2cdb4ae02 (patch) | |
| tree | d3fa66b4137f2f299da6dd7c86fe0e602e35114c /wcal.c | |
| parent | 37a60e1e66abfacb8f3f3b996b83c593b093d723 (diff) | |
| download | wcal-6dc570e657d6cac10aa2af9c259df6c2cdb4ae02.tar.gz wcal-6dc570e657d6cac10aa2af9c259df6c2cdb4ae02.tar.xz wcal-6dc570e657d6cac10aa2af9c259df6c2cdb4ae02.zip | |
add usage, wcal takes no arguments v0.1
Diffstat (limited to 'wcal.c')
| -rw-r--r-- | wcal.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/wcal.c b/wcal.c index fefc9e3..3293f42 100644 --- a/wcal.c +++ b/wcal.c @@ -109,6 +109,13 @@ parse_isodate(char *optarg, int *y, int *m, int *d) } } +void +usage() +{ + fprintf(stderr, "Usage: wcal [-13yci] [-d YYYY[-MM[-DD]]]\n"); + exit(1); +} + int main(int argc, char *argv[]) { @@ -135,9 +142,12 @@ main(int argc, char *argv[]) case 'y': flagy = 1; break; case 'i': flagi = 1; break; case 'd': parse_isodate(optarg, &y, &m, &d); break; - case '?': exit(1); + case '?': usage(); } + if (argc > optind) + usage(); + long today = ymd2jd(y, m, d); jd2ymdwi(today, &y, &m, &d, &cw, &ci, &cg); |